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techtalk:ref:engmech05g [2019/05/28 15:52] hippysmack |
techtalk:ref:engmech05g [2019/05/28 16:11] hippysmack [86-90 Engine Breather Mod Using #4 Cam as an Oil Slinger] |
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====== REF: Oiling & Lubrication - Sub-05G ====== | ====== REF: Oiling & Lubrication - Sub-05G ====== | ||
====== 86-90 Engine Breather Mod Using #4 Cam as an Oil Slinger ====== | ====== 86-90 Engine Breather Mod Using #4 Cam as an Oil Slinger ====== | ||
+ | This is an idea based from the breathing on the BMW Rotax twins. \\ | ||
+ | They have holes on the outer edge of the gear for the water-pump and the gear sits on the end of the inlet-cam. \\ | ||
+ | CC pressure exits the center of the cam without any oil in the air-box. \\ | ||
+ | The idea is to let the engine breathe thru one of the cams, thereby use the rotation to fling the oil out of the air. \\ | ||
+ | (preventing oil mist coming out when going fast over an extended period) \\ | ||
+ | |||
+ | This set-up is just to separate the oil from the air (thru the cam). \\ | ||
+ | Air comes into the cam thru an opening as far from the center of the cam as possible to let centrifugal force fling the oil out of the air. \\ | ||
+ | Then, the air exits the engine thru the center of the cam via an extension through the cam-cover. \\ | ||
+ | The cam is to have a fixed tube straight through the cam-cover and into the cam. \\ | ||
+ | And then a seal on the end of the cam where the tube goes in the cam cover. \\ | ||
+ | |||
+ | From there the air is fed through a reed or umbrella valve to atmosphere. \\ | ||
\\ | \\ |